About: Onset of Microplasticity in Copper Crystal during Nanoindentation

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Description	The nanoindentation test in the dislocation free crystal of copper is simulated by finite element calculations coupled with ab initio calculation of ideal shear strength. The onset of microplasticity, associated with the pop-in effect identified in experimental nanoindentation tests (creation of first dislocations), is assumed to be related to the moment of achieving the value of the ideal shear strength for the copper crystal. This value also depends on the normal stress in the critical shear system in an approximately linear way, as follows from recently published first principle calculations. The calculated values of the critical shear stress (related to the ideal shear strength) lie exactly at the lower limit of the range of experimentally observed pop-ins in the copper crystal. The nanoindentation test in the dislocation free crystal of copper is simulated by finite element calculations coupled with ab initio calculation of ideal shear strength. The onset of microplasticity, associated with the pop-in effect identified in experimental nanoindentation tests (creation of first dislocations), is assumed to be related to the moment of achieving the value of the ideal shear strength for the copper crystal. This value also depends on the normal stress in the critical shear system in an approximately linear way, as follows from recently published first principle calculations. The calculated values of the critical shear stress (related to the ideal shear strength) lie exactly at the lower limit of the range of experimentally observed pop-ins in the copper crystal. (en) The nanoindentation test in the dislocation free crystal of copper is simulated by finite element calculations coupled with ab initio calculation of ideal shear strength. The onset of microplasticity, associated with the pop-in effect identified in experimental nanoindentation tests (creation of first dislocations), is assumed to be related to the moment of achieving the value of the ideal shear strength for the copper crystal. This value also depends on the normal stress in the critical shear system in an approximately linear way, as follows from recently published first principle calculations. The calculated values of the critical shear stress (related to the ideal shear strength) lie exactly at the lower limit of the range of experimentally observed pop-ins in the copper crystal. (cs)
Title	Onset of Microplasticity in Copper Crystal during Nanoindentation Onset of Microplasticity in Copper Crystal during Nanoindentation (en) Onset of Microplasticity in Copper Crystal during Nanoindentation (cs)
skos:prefLabel	Onset of Microplasticity in Copper Crystal during Nanoindentation Onset of Microplasticity in Copper Crystal during Nanoindentation (en) Onset of Microplasticity in Copper Crystal during Nanoindentation (cs)
skos:notation	RIV/00216305:26210/07:PU68906!RIV08-GA0-26210___
http://linked.open.../vavai/riv/strany	801-804
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GA106/05/0274), P(OC 148)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2008
http://linked.open...aciTvurceVysledku	Černý, Miroslav Pokluda, Jaroslav Šandera, Pavel Horníková, Jana
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoké učení technické v Brně / Fakulta strojního inženýrství
http://linked.open...dnocenehoVysledku	439535
http://linked.open...ai/riv/idVysledku	RIV/00216305:26210/07:PU68906
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Nanoindentation, Ab initio calculation, Ideal shear strength, Copper crystal, FEM analysis. (en)
http://linked.open.../riv/klicoveSlovo	Ideal shear strength Nanoindentation Ab initio calculation FEM analysis. Copper crystal
http://linked.open...odStatuVydavatele	CH - Švýcarská konfederace
http://linked.open...ontrolniKodProRIV	[0E2DA9C1226E]
http://linked.open...i/riv/nazevZdroje	Key Engineering Materials
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	http://linked.opendata.cz/resource/domain/vavai/projekt/OC%20148 Multiscale approach to relationships between mechanical and microstructural characteristics of materials
http://linked.open...UplatneniVysledku	2007
http://linked.open...v/svazekPeriodika	348-349
http://linked.open...iv/tvurceVysledku	Pokluda, Jaroslav Černý, Miroslav Horníková, Jana Šandera, Pavel
issn	1013-9826
number of pages	4 (xsd:int)
http://localhost/t...ganizacniJednotka	26210
is http://linked.open...avai/riv/vysledek of	Onset of Microplasticity in Copper Crystal during Nanoindentation Onset of Microplasticity in Copper Crystal during Nanoindentation Onset of Microplasticity in Copper Crystal during Nanoindentation

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